package demo;

public class IfTest {


    public static void main(String[] args) {
        int i=1,j=2;
        i=0;j=2;
        i=1;j=0;
        i=0;j=0;
        if (i!=1) {
            System.out.println("OK");
        }else if (j!=2){
            System.out.println("OK");
        }else System.out.println("error");
    }
}
